The Model 4890D Access Control Entrance

The Model 4890D Access Control Entrance:

The Model 4890D Access Control Entrance, has two bi-directional lanes. The frame consists of heavy duty 6061 ¼” aluminum wall construction. Isotec’s proprietary software and interlock controller, provide control capabilities that can accommodate a multitude of operational scenarios. Isotec offers remote monitoring and control via the Synergy Touchscreen Console along with years of experience integrating combinations of devices for required safety & security protocols. Isotec products can be designed and built for site-specific applications. The Synergy Console integrates portals and disparate technologies to form a seamless access control entrance.
The Model 4890D frame is fabricated from 1/4” wall extruded high tensile strength aluminum tubing, providing an extremely durable platform for a number of applications. The structure is fitted with 36”x84” narrow stile heavy-duty doors, concealed closers, and related hardware to accommodate heavy loads from a variety of ballistic composite panels up to level VIII. The standard panels, provided in this structure, are certified to meet UL 972. Each door is provided with 1” diameter solid brushed stainless steel push bar and pull handles to provide an attractive appearance to the structure. All aluminum components are finished in durable white textured powder coat paint with UV inhibitors for external applications. Other colors are available to match site-specific requirements.
Reach out to us at 303.974.7699 or email us at to more about Isotec’s patented security vestibules, & to schedule a free consultation.
Download our free product brochure here: Model 4890D Access Control Entrance
Features of This Access Control Vestibule:
Each door has a heavy duty overhead 1200lb magnetic lock and appropriate sensors for reliable operation. Also provided is a fail secure deadbolt lock on the high side door in case of power, control or lock failure. Included with the Model 4890D Access Control Entrance, is a Programmable Logic Controller (PLC) that can be modified to any configuration required by the client. The controller and all selected devices are powered by a 24-volt 6.5amp power supply all located in a lockable, tamper-protected swing down ceiling panel also supporting interior lighting and various devices as may be required.
All devices are wired to a distribution terminal block also located in the ceiling and accessed through two conduit stubs at the top of the structure. Power is routed through a 3/4” conduit stub while all external signals are routed out through a 1-1/2” stub.
Additionally, The Model 4890D, has three long-life, high intensity colored LEDs:
• ‘Red’ indicates the entrance is in Out of Service or that Access has been Denied,
• Yellow’ indicates that the entrance is Busy,
• ‘Green’ indicates the entrance is Ready for Use.
An I/R presence sensor, is located in the ceiling of the unit, it specifically indicates a user has entered the vestibule, & is not affected by externally changing lights. When this sensor is paired alongside Isotec’s Anti-tailgating technology, it enforces single person occupancy and passage protocols.
Access into The Model 4890D Access Control Entrance is provided through a set of switches located on the exterior columns of the control entrance. Each plate is finished in silver enamel paint with white filled letters that read “Push to Open”. These switches may be replaced by a customer supplied card reader without running any additional wire. The Synergy Operator Console is provided with each entrance to monitor & control all functions of the Model 4890D; including diagnostics, “on screen” history logs, and help menus.
Contact Isotec today at 303.974.7699 or contact our Sales Director Matt at to learn more about how our security and mantrap entrances can increase your building’s security.